2024-10-01T02:15:16+03:00[Europe/Moscow] en true <p>What is genetics?</p>, <p>What are alleles?</p>, <p>What are the two types of Alleles?</p>, <p>What does genotype mean?</p>, <p>What does phenotype mean?</p>, <p>Expression of dominant/recessive allele</p>, <p>What does a punnett square do?</p>, <p>What is X-linked Inheritance? </p>, <p>what genotype would someone get the phenotype of colour blindness?</p>, <p>Which genotypes are colour blind in phenotype here, who is a carrier?</p> flashcards
Unit 6 - Genetics

Unit 6 - Genetics

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  • What is genetics?

    The study of inheritance, transfer of genetically determined characteristics (encoded by genes) from one generation to the next

  • What are alleles?

    Genes occupying the same location (locus) on homologous chromosomes

  • What are the two types of Alleles?

    Homozygous: both alleles express the same expression of a trait (ex: b & b)

    Heterozygous: both alleles express different expressions of a trait (ex: b & B)

  • What does genotype mean?

    Genetic makeup of an organism. So which alleles are homozygous/heterozygous (BB, Bb, bb)

  • What does phenotype mean?

    Expressions of genotype to give observable characteristics (ex: Bb gives B observably)

  • Expression of dominant/recessive allele

    Dominant allele are expressions in phenotype regardless of other allele, recessive allele only present if homozygous alleles

  • What does a punnett square do?

    Predicts inheritance, so probability of offspring genotypes and phenotypes

  • What is X-linked Inheritance?

    Inheritance of somatic characteristics determined solely by genes on the X chromosomes (ex: colour blindness, hemophilia (a blood disease) are both recessive alleles on the X chromosome

  • what genotype would someone get the phenotype of colour blindness?

    - XnXn and XnY

    - if XnXN then they are carrier but do not have it themselves

  • Which genotypes are colour blind in phenotype here, who is a carrier?

    Which genotypes are colour blind in phenotype here, who is a carrier?